| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 26 |
2.1%
|
| 1 | Central heating | 2 |
0.2%
|
| 2 | Electricity | 297 |
23.8%
|
| 3 | Natural gas | 201 |
16.1%
|
| 4 | Liquefiedgas | 3 |
0.2%
|
| 5 | Oil and diesel | 0 |
0%
|
| 6 | Wood | 304 |
24.4%
|
| 9 | Other | 415 |
33.3%
|
| Sysmiss | 3936 |